You'll want to buy a boost controller so that you can run 5-7 lbs every day and boost it up at the track. It should last a good long time. There are quite a few good forged pistons out there. Wiseco, Probe, Mahle, Ross....only to name a few. Be sure to do your research and call the manufacturer and talk to their customer service rep about your application before dropping the coins on a set. You'll also need good quality rings, most are around $200 a set unless you go extreme with a very nice set of total seal gapless rings. Be sure when you buy bearings for the engine that you buy nothing that isn't coated. An extreme use engine needs everything it can get towards lubrication. Calico makes nice coated bearings and they aren't that much more expensive than stock units. They start with popular brands of bearings and then apply their proprietary coating to the bearing surfaces. Go check out their website and read up on the benefits. You might even consider getting the piston skirts coated to reduce friction.